Manifold connection lock



June 26, 1923.

| B. MARTIN MANIFOLD CONNECTION LOCK Filed Nov. 10, 1921 Patented June 26, 1923.

UNITE STATES means LESTER BRYAN MARTIN, OF FORD, VIRGINIA.

MANIFOLD ooNNEcTIoN LOCK.

Application filed November 10, 1921. Serial No. 514,280.

To all whom it may concern:

Be it known that I, Lns'rnn BRIAN MAR- TIN, a citizen of the United States, residing at Ford, in the countyfof Dinwiddie and State of Virginia, have invented certain new and useful Improvements in Manifold Connection Locks, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates .to improvements in manifold connection locks, and more particularly to a device adapted to be sold as an appliance which will be applicable to any and all jFord automobiles now "on the market for locking and holding the nut which makes the connectionbetween the exhaust manifold of the automobile engine and the exhaust pipe which leads to the mufiier.

The primary object of my improved invention is to provide a lock forth'e manifold connection nut on a car of the Ford type, which will insure that the connection between the manifold and exhaust pipes of the engine will be held firmly, so that there will be no leakage or blowing through of the exhaust gasesat the pipeconnection'and that'the connection cannotbecome loose and broken entirely. 1

A further :obJect :of invention'isto provide an attachment of the nature described, which can "be quickly and easilyiat tached to and detached from the automobile engine exhaust manifold connection.

Another 'obj'ect'of my improved invention is to provide a device of the character described which is cheap and simple to manufacture.

A still further object of my improved invention is to provide a device of the character described, which is eflicient in operation. i

In the drawings:

Figure 1. is a side view ofthejrear end of a Ford automobile engine, showing the exhaust system of the engine, having applied thereto my invention.

Fig. 2 is a perspective view showing-Min detail the component parts of my invention.

Referring now. to the drawings, in which like parts'are designated by similar refer ence numerals throughout the entire description, A represents what have termed the nut clamp and is preferably made from a flat piece of metal bent to form a hollow hexagonal shape, as clearly appears in the drawing. B represents what I have termed a retaining member and is likewise preferably made of a flat piece of metal.

Referring now in more detail to the drawings, and particularly to Fig. 1 thereof, it will clearly appear that 1 represents the cylinderhead'of a gasoline motorof the Ford type. In motors of this type the head is detachable, being held in place by suitable bolts 2. The exhaust manifold of'the motor is designated by the numeral 3, and the exhaust pipe by the numeral 4:. Thee-xhaust manifold of the engine is held in place by cross-arms 14;, which bear against the downwardly projecting portions 15, of the mani fold and are held in place on the bolts 16, bysuitable nuts 17 The exhaust pipe has one end connected to a muffler (not shown) while its other end is connected to the exhaust'manifold 3, by a hexagonal shaped nut 5. The transmission housing of the machine appears at 6 and is provided as is common with a removable cover 7, held in place by suitable bolts '8. The main motor block is designated at 9 and is provided with a removable plate 10 to permit access to the valve stems of the motor, and is held in place by a suitable bolt '11. The dash-board of tlhe'car is'shown at 1 2 and the foot-board at 3.

. Fromexperience I'have found that due to the jars to the machine while running over rough roads and the vibration caused by the running of the engine that the hexagonal riut 5, which connectsthe exhaust pipe 4 to the exhaust manifold 3 of the engine, works loose and allows the exhaust gasesto blow through the pipe connection and, in some cases, the nut works entirely loose allowing the pipe connection to be entirely broken. To overcome and cope with this condition, I have designed a simple and eifective lock for locking the'hexagbnal nut 5, after the same has been tight ened to make the connection between the exhaust pipe 4 and the manifold 3 of the engine.

This lock consists, as above mentioned,

of the nut clamp Aand the retaining member B. The nut clamp A comprises a fiat piece of material bent-to form a hollow hexagonal shape having a plurality of flatsides 19. At one of its sides, designated at 20, the ends of the material from which "the clampis constructed, meet'and'are bent outwardly at right angles to the side'QO of the clamp A in separated parallel relation to form cars 21 and 22. The clamp A is then placed about the hexagonal nut 5 which has been previously tightened to make the connection between the exhaust pipe and the manifold of the engine. The retaining member B, which consists of a flat piece of material, is provided at one end with the slot opening 23, while adjacent its other end it is twisted as at 24: to make its other end 25 lie in a plane at right angles to the main portion 26 of the retaining member.

A screw headed bolt 27 is then inserted through suitable openings in the ears 21 and 22 of the nut clamp A. The end 25 of the retaining member B is provided with an opening to receive the screw-threaded bolt 27, and this opening is placed over the bolt and the clamp and the retaining member are then clamped in position by means of the nut 28 carried on the outer end of the bolt .47- After the parts have been clamped by means of the nut 28, the extreme end 29 of the re taining member B is bent outwardly at right angles, as shown, thus holding the nut 28 locked against rotation and preventing the same from becoming loosened. The opposite end of the retaining member B, which carries the slot 23 now rests in a position over the bolt 16, which carries the cross-arm 1 1 for retaining the exhaust manifold 3 in place. Due to the design of the retaining member B. as to its length and the bend or twist 2 1, it will be found that the slot 23 will i be so positioned as to go down upon the bolt 16 on all Ford machines. After placing the slot 23 of the retaining member B on the bolt 16, the nut 17 is tightened down upon the member.

From the foregoing it will be seen that I have provided an absolute lock for the manifold exhaust connection and that this lock is easily and readily attached and detached. The nut clamp A cannot move upon the hexagonal nut 5, due to the fact that it is tightly clamped about the nut by means of the bolt 27 and the nut 28. The retaining member 1 B is firmlyconnected to the nut clamp A by means of the bolt 27 and the nut 28 and the retaining member in turn locks the nut 28 against loosening. Any possible movement of the hexagonal connection nut 5 is guarded against by the retaining member B, which is rigidly held upon the bolt 16 by means of the nut 17. Once the nut 5 is tightened and my device is applied, as described, there is no way in which the manifold and exhaust pipe connection can become loosened or broken.

Although in the drawings and throughout the description I have shown and described the retaining member as being attached and held to the bolt 16, I wish it to be readily understood that the retaining member could be made of a shape and size to have its end carrying the slot 23 fastened to the bolt 3 in the removable cover on the transmission housing; one of the bolts 2 holding the cyl-- inder head in place; or the bolt 11, which holds the removable plate 10 against the main motor block 9, without departing from the spirit of my invention. The manner of fastening the end of the retaining member, shown in the drawing, is the desired manner, as I have found it to be easier to attach the device in this way than to the other bolts above spoken of.

It is my desire and intention to cover by the claims of this application and to protect my invention whether the same is constructed to be attached as shown in the drawings, or attached in one of the several manners above spoken of.

I desire further to point out that because of the slot 23 in the end of the retaining member for engaging the bolt 16, my device can be applied to any Ford engine now on the market. This slot gives leeway for an increase or decrease in the distance from the hexagonal nut 5 to the bolt 16 of the exhaust manifold, which distance is slightly different in different model engines.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. A nut lock, of a hollow hexagonal shape provided with outwardly extending parallel ears, a bolt extending through the ears for compressing the hexagonal clamp, a retaining member having a portion of its length bent in a plane at right angles to its other portion, one of the portions of the retaining member greater in length than the other and provided with an opening, the other portion of the retaining member provided with an opening and an extending end adapted to be bent outwardly at right angles, this end of the member being clamped beneath the nut carried by the clamping member bolt, and the outwardly extending end of the retaining member bent outwardly to lock the clamping nut against rotation.

2. A nut lock comprising a clamping member adapted to be clamped about a nut by means of a compression member, a retaining member for locking the clamping member against rotation, the retaining member having one end attached to the clamp by means of the compression member and its opposite end adapted for connection to an anchor.

3. A nut lock comprising a clamping member adapted to be clamped about a nut, a retaining member carried by the clamping member, andthe retaining member having a portion of its length bent in a plane at right angles to itself, for the purpose described.

4. A nut lock comprising a clamping member provided with outstanding parallel ears, a bolt carried by the ears. for compressing the clamping member about a nut, a retaining member having one endfastened beneath the clamping member bolt and its end bent to lock the bolt against rotation, and the opposite end of the retaining member adapted to be fastened to an anchor.

5. A nut lock comprising a clamping member, provided with a bolt to compress the same, a retaining member carried by the bolt and adapted to be fastened to an anchor, and one portion of the retaining member bent in a plane at right angles to its othenportion for the purpose described. 6. A nut lock comprising a clamping member provided with a bolt for compressing the same, a retaining member having one end fastened beneath the bolt and its other end provided with a slot, a portion of the retaining member bent in a plane at right angles to its other portion, and the slotted end of the retaining member fastened to an anchor, for the purpose described.

In testimony whereof I hereunto affix my signature LESTER BRYAN MARTIN. 

